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But to generate as you said..we need source code/design file, which i am not able to get it at the moment from FPGA team.and as i checked in xilinx forum, with above two files which i have attached, we can invoke .pkg file in to Spartan6.ibs file and generate IBIS model for required pakage.

Since you don't have the design files, you can't generate from ISE. You only option is to manually include the package model in simulation using details from .pkg file since your device pinout will not match with the generic Spartan6 IBIS file you have.

Since you mention you don't have the code yet, I assume you are doing pre-layout sims or initial study. So why not start off with the generic IBIS model by picking the IO standard to get a base cut idea and then as your design develops, get the more detailed package included IBIS model from ISE that matches your code?

- Giri--------------------------------------------------------------------------------------------------------------------There's no such thing as a stupid question. Feel free to ask but do a quick search to make sure it ain't already answered. Keep conversing, give Kudos and Accept Solution when you get one. -----------------------------------------------------------------------------------------------------------------------

Re: Need IBIS model for : XC6SLX45T-2FG484I

You can generate an IBIS file that contains a pin list and models that are unique to your design. IBIS is a device modeling standard that allows for the development of behavioral models used to describe the signal behavior of device I/Os, while preserving proprietary circuit information.

Please go through the steps mentioned in the below link to generate an IBIS model.

But to generate as you said..we need source code/design file, which i am not able to get it at the moment from FPGA team.and as i checked in xilinx forum, with above two files which i have attached, we can invoke .pkg file in to Spartan6.ibs file and generate IBIS model for required pakage.

Since you don't have the design files, you can't generate from ISE. You only option is to manually include the package model in simulation using details from .pkg file since your device pinout will not match with the generic Spartan6 IBIS file you have.

Since you mention you don't have the code yet, I assume you are doing pre-layout sims or initial study. So why not start off with the generic IBIS model by picking the IO standard to get a base cut idea and then as your design develops, get the more detailed package included IBIS model from ISE that matches your code?

- Giri--------------------------------------------------------------------------------------------------------------------There's no such thing as a stupid question. Feel free to ask but do a quick search to make sure it ain't already answered. Keep conversing, give Kudos and Accept Solution when you get one. -----------------------------------------------------------------------------------------------------------------------